6622664787903 has 16 divisors (see below), whose sum is σ = 9182535782400. Its totient is φ = 4240546017120.

The previous prime is 6622664787889. The next prime is 6622664787917. The reversal of 6622664787903 is 3097874662266.

It is an interprime number because it is at equal distance from previous prime (6622664787889) and next prime (6622664787917).

It is not a de Polignac number, because 6622664787903 - 2⁴ = 6622664787887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622664787103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199257163 + ... + 199290396.

It is an arithmetic number, because the mean of its divisors is an integer number (573908486400).

Almost surely, 2^{6622664787903} is an apocalyptic number.

6622664787903 is a deficient number, since it is larger than the sum of its proper divisors (2559870994497).

6622664787903 is a wasteful number, since it uses less digits than its factorization.

6622664787903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398547782.

The product of its (nonzero) digits is 219469824, while the sum is 66.

The spelling of 6622664787903 in words is "six trillion, six hundred twenty-two billion, six hundred sixty-four million, seven hundred eighty-seven thousand, nine hundred three".